With 78% of its viewing happening on living room television sets, Hulu has a big stake in solutions like Comscore’s soon-to-launch Campaign Ratings tool for measuring de-duplicated, cross-platform audiences. Comscore launched Xmedia a few years ago to measure and de-duplicate viewers across screens. Campaign Ratings will launch in beta this September, with support from nearly all media companies and existing customers, including ABC, CBS, Fox, Viacom, Hulu and others.